Halogens is defined as the group of 7 periodic table. As, every periodic table contains 7 valence electrons and they only need 1 more to complete an outer shell, that is why they are extremely reactive. And according to the law that recurring patterns of the properties of elements arise when they are arranged in order of increasing atomic number. As the halogen all act very similarly with each other in chemical reaction, it is true.
A. <span>the layer of rock and mineral fragments that covers nearly all of Earth's land surface</span>
Answer:
The oeriodic table have 8 groups
Mixed economy. Wherever the private and public sector have an active role, they are determined to be a mixed economy.
Answer:
2H2(g]+O2(g]→2H2O(l]]. Notice that the reaction requires 2 moles of hydrogen gas and 1
Explanation:
